Ruling · Govatsa Dvādaśī (Vasu Baras) · 1937

Saturday 30 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 562 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two evenings

One ghaṭī is 24 minutes. Pradoṣa is 2 muhūrtas after sunset.

Evening of Saturday 30 October

Taken. The only evening Dvādaśī reaches.

17:21 sunsetpradoṣa ends 19:08
16:5717:2117:4518:0918:3318:5719:21

107 of 107 minutes covered

Evening of Sunday 31 October

Dvādaśī is absent from pradoṣa. Not taken.

17:20 sunsetpradoṣa ends 19:07
16:5617:2017:4418:0818:3218:5619:20

0 of 107 minutes covered

Dvādaśī presentPradoṣa, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 07:26 on Sat 30 Oct to 07:58 on Sun 31 Oct.

    1937-10-29T23:25:53Z → 1937-10-30T23:57:49Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:21–19:08 on the 30th, 17:20–19:07 on the 31st.

    pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Dvādaśī must be present during pradoṣa. It covers 107 of 107 minutes on the 30th and 0 of 107 on the 31st.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Only one evening qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 33705 s

  5. 05

    Ruling

    Govatsa Dvādaśī, Baoding, 1937: Saturday 30 October.

    confidence: determinate

Say it like this

In Baoding, Govatsa Dvādaśī (Vasu Baras) 1937 falls on Saturday 30 October. Dvādaśī runs from 07:26 on Sat 30 Oct to 07:58 on Sun 31 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1937/govatsa-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 30 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 30 Oct
compat-drikpanchangComparison profileSat 30 Oct
No institution has a recorded ruling for Baoding.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/govatsa-dvadashi · ruleset 2026.3-draft

Month
Āśvina, amānta
Pakṣa · aṅga
Kṛṣṇa · Dvādaśī
Kāla
Pradoṣa
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 104

“K 12 Govatsa dvadasi (pradosa vyapini). If occurs on two days, it is to be observed on the first day.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceDvādaśīSunset 29thCoveredSunset 30thCoveredRuled
Los Angeles15:26 → 15:5817:03105 min17:020 min29 Oct
Chicago17:26 → 17:5816:4971 min16:4870 min29 Oct
Jersey City18:26 → 18:5816:5718 min16:55108 min29 Oct
Port of Spain19:26 → 19:5817:430 min17:4298 min30 Oct
London23:26 → 23:5816:400 min16:38114 min30 Oct
Durban01:26 → 01:5818:150 min18:1686 min30 Oct
Dubai03:26 → 03:5817:400 min17:40102 min30 Oct
Delhi04:56 → 05:2817:390 min17:38103 min30 Oct
Kolkata04:56 → 05:2817:010 min17:00101 min30 Oct
Singapore06:46 → 07:1818:100 min18:1095 min30 Oct
Sydney09:26 → 09:5818:200 min18:2085 min30 Oct
Suva11:26 → 11:5818:110 min18:1290 min30 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
govatsa-dvadashi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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